參數(shù)資料
型號: TDA7057A
廠商: NXP Semiconductors N.V.
英文描述: 50 AMP LATCHING POWER RELAY
中文描述: 2 × 8 W立體聲橋接直流音量控制音頻輸出放大器
文件頁數(shù): 5/16頁
文件大?。?/td> 116K
代理商: TDA7057A
1998 Apr 07
5
Philips Semiconductors
Product specification
2
×
8 W stereo BTL audio output amplifier
with DC volume control
TDA7057AQ
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
THERMAL CHARACTERISTICS
Power dissipation
Assume V
P
= 12 V and R
L
= 16
. The maximum sine wave dissipation is 2
×
1.8 W = 3.6 W.
At T
amb(max)
= 60
°
C:
R
th tot
= (150
60)/3.6 = 25 K/W.
R
th tot
= R
th j-c
+ R
th c-hs
+ R
th hs
.
R
th c-hs
+ R
th hs
= 25
4 = 21 K/W.
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
V
P
I
ORM
I
OSM
P
tot
T
amb
T
stg
T
vj
t
sc
V
n
supply voltage
repetitive peak output current
non-repetitive peak output current
total power dissipation
operating ambient temperature
storage temperature
virtual junction temperature
short-circuit time
input voltage pins 1, 3, 5 and 7
40
55
18
1.25
1.5
22.5
+85
+150
150
1
5
V
A
A
W
°
C
°
C
°
C
hr
V
T
case
< 60
°
C
SYMBOL
PARAMETER
VALUE
UNIT
R
th j-c
R
th j-a
thermal resistance from junction to case
thermal resistance from junction to ambient in free air
4
40
K/W
K/W
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